/Engine/Source/Editor/ContentBrowser/Public/ContentBrowserModule.h
Delegates to be called to extend the drag-and-drop support of the asset view
virtual [TArray](API\Runtime\Core\Containers\TArray)< [FAssetViewDragAndDropExtender](API\Editor\ContentBrowser\FAssetViewDragAndDropExtender) > & GetAssetViewDragAndDropExtenders()